ID help please! Monster creeping charlie??

machelle_wJuly 19, 2010

This monster weed is ridiculously invasive with long white tubelike roots that grow horizontally and quite deep. I can't for the life of me figure out how to get rid of them!

This isn't my garden, I found this picture online but it is EXACTLY what has happened to my garden and what this weed looks like. I left on vacation and I had a few that had grown back which were small (1' leaves) and came back 2 weeks later with the entire garden overrun.

http://thumb15.webshots.net/s/thumb1/1/83/56/176

Please help garden gurus... no one around here has any clue as to what I'm dealing with or how to solve my problem!

thanks!

Image link:

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tyrlych

A species of Petasites or Tussilago, more details needed to tell them apart.

    Bookmark   July 20, 2010 at 3:46AM
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machelle_w

I think it's Tussilago farfara (AKA Coltsfoot)! I do recall seeing a couple of those yellow flowers, but there certainly weren't very many, and no where near how many leaves and individual looking plants there are now.

I would love to provide more information/take some photos today and post them. What information would you need to make a definitive diagnosis?

Does anyone know how to get RID of this horrific thing? I just read that it's listed as a noxious weed and banned in several US states.

    Bookmark   July 20, 2010 at 8:13AM
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dianasan(z5a Mtl)

I suppose you have tried pulling them out?

Since you live in Montreal, you can only get non-selective herbicides are such as Round-Up or Wipe-Out. Be careful not to get any of the spray on the surrounding vegetation. It will take several days to see results, but I think that should kill off most of it and you can reapply if any come up again.

If you prefer not to use a herbicide, then use a vinegar and salt solution. Try to get some Heinz Pickling Vinegar which has a higher concentration of acetic acid than plain white vinegar.

You could also burn the weeds with a blow torch.

Whichever one of the above methods you use, I would first trim about half of the leaves and then treat the remaining leaves.

    Bookmark   July 20, 2010 at 9:23PM
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